diff --git a/antlr-kotlin-runtime/src/commonMain/kotlin/com/strumenta/antlrkotlin/runtime/ext/String.ext.kt b/antlr-kotlin-runtime/src/commonMain/kotlin/com/strumenta/antlrkotlin/runtime/ext/String.ext.kt
index 5de72e65..1aeb3b87 100644
--- a/antlr-kotlin-runtime/src/commonMain/kotlin/com/strumenta/antlrkotlin/runtime/ext/String.ext.kt
+++ b/antlr-kotlin-runtime/src/commonMain/kotlin/com/strumenta/antlrkotlin/runtime/ext/String.ext.kt
@@ -9,11 +9,7 @@ import kotlin.math.min
  */
 public fun String.codePointIndices(): IntArray {
   val (array, size) = codePointIndicesFast(this)
-  return if (array.size != size) {
-    array.copyOfRange(0, size)
-  } else {
-    array
-  }
+  return array.copyOfRange(0, size)
 }
 
 /**